This would be perfect for a Halloween 2019 release. Jack Black is competing against himself this year with 'Goosebumps 2' and 'The House with a Clock in it's Wall'. Both look like they could be happening in the same universe.

And 'House with a Clock' is directed by Eli Roth, you know, the man who is (was?) supposed to direct 'Aleister Arcane'. The trailer surprised me, I think there's a chance he could pull this off visually, which I never expected. Of course 'Aleister' should be aiming at a bit older audience to begin with, if true to the source material, R-rated even, but still. This could actually work.